Dirt Bike Engine

Dirt Bike Engine

Dirt Bike Engine

Explore our selection for dirt bike parts for adding horsepower or reliability to a dirt bike's engine. We feature engine parts from Wiseco, Vertex, and more common engine part manufacturers. Get new pistons and gasket kits for re-freshening engines to withstand any conditions you put your bike through!

  • On Sale
    HOT RODS Connecting Rod 8108

    HOT RODS Connecting Rod 8108

    HOT RODS

    MSRP: $128.95
    Now: $118.76
    Was: $133.95
    HOT RODS Connecting Rod 8108Heavy-duty OE replacement connecting rods, Certified 8620 AISI steel provides superior strength, Crankpins are manufactured from hot-rolled ASTM 4115 and case hardened to 58-62Rc, Feature the latest in caged needle roller...
    423102
    SKU:
    423102
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    ENGINE TYPE:
    2-CYCLE
    FEATURES:
    INCLUDES THRUST WASHERS
    PRODUCT NAME:
    CONNECTING ROD KIT
    UNITS:
    KIT
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    8620 STEEL
    MSRP: $128.95
    Now: $118.76
    Was: $133.95
  • On Sale
    ATHENA Top End Gasket Kit - Suzuki P400510600013

    ATHENA Top End Gasket Kit - Suzuki P400510600013

    ATHENA

    MSRP: $9.95
    Now: $8.96
    Was: $9.95
    Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Kits do not...
    4.00511E+11
    SKU:
    4.00511E+11
    Weight:
    0.00 LBS
    MSRP: $9.95
    Now: $8.96
    Was: $9.95
  • WISECO Piston - Suzuki - 1mm 380M07100

    WISECO Piston - Suzuki - 1mm 380M07100

    WISECO

    $199.95
    Wiseco Piston Kit - Part #380M07100 Take your bike's performance to the next level with the Wiseco Piston Kit, part number 380M07100. This high-quality piston kit is designed for riders who demand durability, efficiency, and power, all packed into one...
    380M07100
    SKU:
    380M07100
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    BORE - OVERSIZE:
    +1,00 MM
    BORE SIZE METRIC:
    71.00 MM
    DISPLACEMENT:
    246 CC
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    STROKE LENGTH METRIC:
    64.00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    PISTON DIAMETER METRIC:
    70.92 MM
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
  • WISECO Piston - Suzuki - Standard 380M07000

    WISECO Piston - Suzuki - Standard 380M07000

    WISECO

    $199.95
    Wiseco 380M07000 Piston Kit Transform the performance of your Suzuki TM250, TS250, or DS250 with the Wiseco 380M07000 Piston Kit, meticulously crafted for unbeatable strength, precision, and performance. Engineered specifically for 2-stroke engines, this...
    380M07000
    SKU:
    380M07000
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE - OVERSIZE:
    STANDARD
    DISPLACEMENT:
    246 CC
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    70.00 MM
    PISTON DIAMETER METRIC:
    69.92 MM
    PRODUCT NAME:
    PISTON KIT
    STROKE LENGTH METRIC:
    64.00 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
  • WISECO Ring Set 3504TD

    WISECO Ring Set 3504TD

    WISECO

    $54.95
    WISECO Ring Set 3504TDEach ring set is for one piston
    3504TD
    SKU:
    3504TD
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    PISTON MATERIAL:
    ALUMINUM
    BORE SIZE METRIC:
    89.00 MM
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    $54.95
  • WISECO Ring Set 3347XC

    WISECO Ring Set 3347XC

    WISECO

    $49.95
    WISECO Ring Set 3347XCEach ring set is for one piston
    3347XC
    SKU:
    3347XC
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    PISTON MATERIAL:
    ALUMINUM
    BORE SIZE METRIC:
    85.00 MM
    PRODUCT NAME:
    PISTON RING
    RIDING STYLE:
    STREET
    UNITS:
    SET
  • WISECO Ring Set 3347TD

    WISECO Ring Set 3347TD

    WISECO

    $54.95
    WISECO Ring Set 3347TDEach ring set is for one piston
    3347TD
    SKU:
    3347TD
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    PRODUCT NAME:
    PISTON RING
    BORE SIZE METRIC:
    85.00 MM
    RIDING STYLE:
    ATV
    PISTON MATERIAL:
    ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    SET
    $54.95
  • WISECO Piston - Yamaha - 1mm 236M05700

    WISECO Piston - Yamaha - 1mm 236M05700

    WISECO

    $159.95
    Wiseco 236M05700 Piston Kit Take your Yamaha DT125 or IT125 to the next level with the Wiseco 236M05700 Piston Kit, designed to deliver outstanding durability, precision, and performance. Built for high-performance 2-stroke engines, this piston kit is...
    236M05700
    SKU:
    236M05700
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE:
    +1,00 MM
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    57.00 MM
    STROKE LENGTH METRIC:
    50.00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    DISPLACEMENT:
    123 CC
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    56.95 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    $159.95
  • On Sale
    HOT RODS Water Pump Shaft HRSHA-002

    HOT RODS Water Pump Shaft HRSHA-002

    HOT RODS

    MSRP: $50.95
    Now: $46.76
    Was: $52.95
    HOT RODS Water Pump Shaft HRSHA-002Replaces worn water pump shaft, OE quality materials, Polished surface finish decreases water pump seal wear, Complement Hot Rod's Water Pump Repair kit
    09500575
    SKU:
    09500575
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    TYPE:
    WATER PUMP
    PRODUCT NAME:
    SHAFT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MSRP: $50.95
    Now: $46.76
    Was: $52.95
  • On Sale
    HOT RODS Water Pump Shaft HRSHA-001

    HOT RODS Water Pump Shaft HRSHA-001

    HOT RODS

    MSRP: $50.95
    Now: $46.76
    Was: $52.95
    HOT RODS Water Pump Shaft HRSHA-001Replaces worn water pump shaft, OE quality materials, Polished surface finish decreases water pump seal wear, Complement Hot Rod's Water Pump Repair kit
    09500574
    SKU:
    09500574
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    TYPE:
    WATER PUMP
    PRODUCT NAME:
    SHAFT
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    MSRP: $50.95
    Now: $46.76
    Was: $52.95
  • On Sale
    POWERSTANDS RACING Oil Cap Kit - Red - M20 x 2.5 00-01318-24

    POWERSTANDS RACING Oil Cap Kit - Red - M20 x 2.5 00-01318-24

    POWERSTANDS RACING

    MSRP: $54.95
    Now: $33.00
    Was: $54.95
    POWERSTANDS RACING Oil Cap Kit Red M20 x 2.5 00-01318-24CNC-machined from high-quality aluminum, E-clip is already safety wired to a mounting tab and the wire covered with silicon tubing that will not melt or discolor, Excellent resistance to extreme heat
    09500567
    SKU:
    09500567
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    COLOR/FINISH:
    ANODIZED
    DIAMETER - THREAD SIZE IMPERIAL:
    M20 X 2.5
    RIDING STYLE:
    OFF-ROAD
    COLOR/FINISH:
    RED
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    CAP KIT
    TYPE:
    OIL FILLER
    UNITS:
    KIT
    MSRP: $54.95
    Now: $33.00
    Was: $54.95
  • On Sale
    POWERSTANDS RACING Oil Cap Kit - Blue - M14 x 1.5 00-01317-25

    POWERSTANDS RACING Oil Cap Kit - Blue - M14 x 1.5 00-01317-25

    POWERSTANDS RACING

    MSRP: $31.95
    Now: $19.00
    Was: $31.95
    POWERSTANDS RACING Oil Cap Kit Blue M14 x 1.5 00-01317-25CNC-machined from high-quality aluminum, E-clip is already safety wired to a mounting tab and the wire covered with silicon tubing that will not melt or discolor, Excellent resistance to extreme...
    09500565
    SKU:
    09500565
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    COLOR/FINISH:
    ANODIZED
    COLOR/FINISH:
    BLUE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    PRODUCT NAME:
    CAP KIT
    TYPE:
    OIL FILLER
    DIAMETER - THREAD SIZE IMPERIAL:
    M14 X 1.5
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    STREET
    MSRP: $31.95
    Now: $19.00
    Was: $31.95
  • BOYESEN Impeller/Waterpump Cover WPK06AM

    BOYESEN Impeller/Waterpump Cover WPK06AM

    BOYESEN

    $194.95
    BOYESEN Impeller/Waterpump Cover WPK06AMAn aluminum investment-cast water pump cover and impeller combo; specifically designed to enhance the performance of your engines cooling system, This high-flow, hydrodynamic water pump kit has been tested and...
    09400897
    SKU:
    09400897
    Availability:
    Ships Same Business Day
    Weight:
    0.34 LBS
    COLOR/FINISH:
    POWDER-COATED
    MODEL:
    SUPERCOOLER
    PRODUCT NAME:
    COVER AND IMPELLER KIT
    RIDING STYLE:
    OFF-ROAD
    BASE FINISH:
    POWDER-COATED
    UNITS:
    KIT
    TYPE:
    WATER PUMP
    COLOR/FINISH:
    MAGNESIUM
    MATERIAL:
    ALUMINUM
    $194.95
  • BOYESEN Impeller/Waterpump Cover WPK06AB

    BOYESEN Impeller/Waterpump Cover WPK06AB

    BOYESEN

    $194.95
    BOYESEN Impeller/Waterpump Cover WPK06ABAn aluminum investment-cast water pump cover and impeller combo; specifically designed to enhance the performance of your engines cooling system, This high-flow, hydrodynamic water pump kit has been tested and...
    09400896
    SKU:
    09400896
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    BASE COLOR:
    BLACK
    BASE FINISH:
    POWDER-COATED
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    POWDER-COATED
    MATERIAL:
    ALUMINUM
    MODEL:
    SUPERCOOLER
    PRODUCT NAME:
    COVER AND IMPELLER KIT
    $194.95
  • On Sale
    HOT RODS Output Shaft Seal OSK0057

    HOT RODS Output Shaft Seal OSK0057

    HOT RODS

    MSRP: $21.25
    Now: $19.76
    Was: $21.95
    HOT RODS Output Shaft Seal OSK0057A quick solution to repairing a leaking countershaft seal in one complete kit, Includes Hot Rods countershaft seal, countershaft bushing, O-rings, and sprocket nut washer (where applicable), Kits do not include water...
    09350955
    SKU:
    09350955
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    SEAL KIT
    TYPE:
    OIL
    UNITS:
    KIT
    APPLICATION:
    COUNTERSHAFT
    RIDING STYLE:
    OFF-ROAD
    MSRP: $21.25
    Now: $19.76
    Was: $21.95
  • On Sale
    HOT RODS Output Shaft Seal OSK0058

    HOT RODS Output Shaft Seal OSK0058

    HOT RODS

    MSRP: $28.95
    Now: $26.96
    Was: $29.95
    HOT RODS Output Shaft Seal OSK0058A quick solution to repairing a leaking countershaft seal in one complete kit, Includes Hot Rods countershaft seal, countershaft bushing, O-rings, and sprocket nut washer (where applicable), Kits do not include water...
    09350954
    SKU:
    09350954
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    APPLICATION:
    COUNTERSHAFT
    TYPE:
    OIL
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    SEAL KIT
    UNITS:
    KIT
    MSRP: $28.95
    Now: $26.96
    Was: $29.95
  • On Sale
    CYLINDER WORKS Power Valve - Big Bore CW-PV-K02

    CYLINDER WORKS Power Valve - Big Bore CW-PV-K02

    CYLINDER WORKS

    MSRP: $324.95
    Now: $297.86
    Was: $332.95
    CYLINDER WORKS Power Valve Big Bore CW-PV-K02Maintain peak performance, CNC-machined, Hard anodized finish, Made in the U.S.A.
    09350953
    SKU:
    09350953
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    COLOR/FINISH:
    ANODIZED
    MATERIAL:
    STEEL
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    POWER VALVE
    BORE SIZE METRIC:
    72.00 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MSRP: $324.95
    Now: $297.86
    Was: $332.95
  • On Sale
    CYLINDER WORKS Power Valve - Standard Bore CW-PV-K01

    CYLINDER WORKS Power Valve - Standard Bore CW-PV-K01

    CYLINDER WORKS

    MSRP: $230.95
    Now: $207.86
    Was: $230.95
    CYLINDER WORKS Power Valve Standard Bore CW-PV-K01Maintain peak performance, CNC-machined, Hard anodized finish, Made in the U.S.A.
    09350952
    SKU:
    09350952
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    STOCK BORE CYLINDER
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    POWER VALVE
    COLOR/FINISH:
    ANODIZED
    MSRP: $230.95
    Now: $207.86
    Was: $230.95
  • COMETIC Crank Seal Kit C7803

    COMETIC Crank Seal Kit C7803

    COMETIC

    $17.95
    COMETIC Crank Seal Kit C7803Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide, Domestically made sets include the correct amount of seals for one application, Made in the U.S.A.
    09350811
    SKU:
    09350811
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    SEAL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    APPLICATION:
    CRANKSHAFT
    TYPE:
    OIL
    $17.95
  • On Sale
    HOT RODS Seal Output Shaft OSK0031

    HOT RODS Seal Output Shaft OSK0031

    HOT RODS

    MSRP: $28.95
    Now: $26.96
    Was: $29.95
    HOT RODS Seal Output Shaft OSK0031A quick solution to repairing a leaking countershaft seal in one complete kit, Includes Hot Rods countershaft seal, countershaft bushing, O-rings, and sprocket nut washer (where applicable), Kits do not include water...
    09350594
    SKU:
    09350594
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    SEAL
    UNITS:
    KIT
    APPLICATION:
    COUNTERSHAFT
    APPLICATION:
    TRANSMISSION
    RIDING STYLE:
    OFF-ROAD
    MSRP: $28.95
    Now: $26.96
    Was: $29.95

Dirt Bike Engine Parts

Keep your dirt bike running smoothly and prolong the life of its engine with essential general maintenance. But when parts start to break down, don't let it stop you from getting out on the trails! JJ Motorsports has all that you need for minor jobs like oil changes or major overhauls such as a complete rebuild - carrying top aftermarket brands . Get back in gear faster by shopping our full line of high-quality dirt bike engine parts here today at JJ Motorsports!

 

At JJ Motorsports, we want to make sure you don't miss out on the ride! If your motor has blown or radiator smashed, our gearheads can help get you back in the seat. We carry piston kits from top brands like Wiseco and Wrench Rabbit engine kits so that riders have access to a wide range of parts for their dirt bike engine rebuilds. Plus – with gaskets at-the-ready when it comes time for any leakages - no need to worry about maintenance issues either; simply stay up on oil & filter changes and let us take care of everything else. Got queries? Just give one of our knowledgeable staff members a call at 1-231‐767‐5055 where they'll be more than happy provide advice, instructions and tailored answers catered just for YOU!